Table 2.
Sex-Steroid Hormone | External QC (pg/ml) |
Measured (mean±SD) (pg/ml) |
# of Measurements |
Time Period | RE (%)a | CV (%) b |
---|---|---|---|---|---|---|
Progesterone | 35 | 34.4±3.8 | 46 | 02/25/2015 - 07/07/2016 | 1.7 | 11.1 |
100 | 103±7.3 | 18 | 07/14/2016 - 02/22/2017 | 3.1 | 7.1 | |
Estradiol | 25 | 24.5±3.2 | 61 | 01/13/2015 - 02/22/2017 | 2.0 | 13.0 |
RE=relative error=(calculated value-true value)/true value *100.
CV=relative standard deviation=sample standard deviation/sample mean*100.